Simulation and validation of turbulent gas flow in a cyclone using CaelusApplied CCM Pty Ltd
Cyclones play a dominant role in the industrial separation of dilute particles from an incoming gas flow. The complex swirling flow in cyclones provides significant challenges for turbulence modelling in CFD. This paper presents a single phase transient solver developed using the Caelus library. The solver predictions using k-ω SST with and without curvature corrections, Reynolds Stress Model (LRR) and Large Eddy Simulation (Smagorinsky and coherent structure) turbulence models are compared against laser velocity measurements to investigate the level of accuracy afforded by each turbulence model. The k-ω SST model without any curvature corrections produced the poorest predictions of the flow field, whilst the coherent structure LES was found to be in excellent agreement with the experimental measurements.
Use of streamline flow diagnostics for injection production rate allocation o...Shusei Tanaka
Rate allocation optimization for water and gas injection/production problem are typically complex, require multiple simulations to find optimal injection/production strategy to improve the economic value of the asset. The objective of this work is to develop and demonstrate the fast (one or few iteration of simulations) and robust (improve efficiency based on economic values with derivative-free method) workflow to achieve water and gas flooding rate allocation optimization by streamline-based technique.
Streamline based history matching of arrival times and bottom-hole pressure d...Shusei Tanaka
Streamline-based history matching techniques have provided significant capabilities in integrating field-scale water-cut and tracer data into high resolution geologic models. The effectiveness of the streamline approach lies in the fact that parameter sensitivities can be computed analytically as one-dimensional integrals along streamlines and requires little additional computational overhead beyond the forward simulation. However, application of the streamline-based approach for simultaneous integration of water-cut and bottomhole pressure has been rather limited. This is partly because the convective streamlines appear to offer no particular advantage while computing parameter sensitivities for the bottomhole pressure data. This limits the utility of streamline-based history matching particularly for three-phase black-oil and compositional systems where the integration of pressure data is a requirement to accurately model reservoir depletion mechanisms.
Simulation and validation of turbulent gas flow in a cyclone using CaelusApplied CCM Pty Ltd
Cyclones play a dominant role in the industrial separation of dilute particles from an incoming gas flow. The complex swirling flow in cyclones provides significant challenges for turbulence modelling in CFD. This paper presents a single phase transient solver developed using the Caelus library. The solver predictions using k-ω SST with and without curvature corrections, Reynolds Stress Model (LRR) and Large Eddy Simulation (Smagorinsky and coherent structure) turbulence models are compared against laser velocity measurements to investigate the level of accuracy afforded by each turbulence model. The k-ω SST model without any curvature corrections produced the poorest predictions of the flow field, whilst the coherent structure LES was found to be in excellent agreement with the experimental measurements.
Use of streamline flow diagnostics for injection production rate allocation o...Shusei Tanaka
Rate allocation optimization for water and gas injection/production problem are typically complex, require multiple simulations to find optimal injection/production strategy to improve the economic value of the asset. The objective of this work is to develop and demonstrate the fast (one or few iteration of simulations) and robust (improve efficiency based on economic values with derivative-free method) workflow to achieve water and gas flooding rate allocation optimization by streamline-based technique.
Streamline based history matching of arrival times and bottom-hole pressure d...Shusei Tanaka
Streamline-based history matching techniques have provided significant capabilities in integrating field-scale water-cut and tracer data into high resolution geologic models. The effectiveness of the streamline approach lies in the fact that parameter sensitivities can be computed analytically as one-dimensional integrals along streamlines and requires little additional computational overhead beyond the forward simulation. However, application of the streamline-based approach for simultaneous integration of water-cut and bottomhole pressure has been rather limited. This is partly because the convective streamlines appear to offer no particular advantage while computing parameter sensitivities for the bottomhole pressure data. This limits the utility of streamline-based history matching particularly for three-phase black-oil and compositional systems where the integration of pressure data is a requirement to accurately model reservoir depletion mechanisms.
2017 CalAPA Fall Asphalt Pavement Conference presentation: A summary of research conducted by the University of California Pavement Research Center, Lawrence Berkeley National Laboratory and the University of Southern California on lifecycle impacts of cool pavement strategies in California.
A novel approach for incorporation of capillary and gravity into streamline s...Shusei Tanaka
The effective use of streamline simulators for flow simulation of multi-million cell detailed 3D models relies on the ability to take large simulation time-steps with few pressure solutions. For processes that are convective, the streamline approach works quite well while for flow simulation with compressibility, strong capillarity or strong gravity terms, the maximum time step size may be substantially reduced, limiting the utility of streamline simulation. This is the case when applying the conventional streamline operator-splitting approach, where the nonlinear terms associated with capillarity and gravity limit the time step. Earlier studies have shown the importance of an anti-diffusive correction in which numerical dispersion from the convective solution must be removed before capillary pressure can be accurately modeled. Evaluation of the antidiffusive term involves the solution of a local Riemann problem which, unfortunately, is difficult to determine in full field multi-dimensional problems with heterogeneity, and spatially variable viscosity, fluid velocity, and saturations. The alternative approach is to perform the operating splitting calculation with very small time-steps to minimize the numerical dispersion, but this is not an effective simulation strategy.
Prototype Development of an Integrated Mars Atmosphere and Soil Processing Sy...Michael Interbartolo
NASA multicenter effort to design and build an integrated system for processing representative Martian Atmosphere and Soil. Presented at the Earth & Space 2012 conference in Pasadena CA.
An effective reservoir management by streamline based simulation, history mat...Shusei Tanaka
The use of the streamline-based method for reservoir management is receiving increased interest in recent years because of its computational advantages and intuitive appeal for reservoir simulation, history matching and rate allocation optimization. Streamline-based method uses snapshots of flow path of convective flow. Previous studies proved its applicability for convection dominated process such as waterflooding and tracer transport. However, for a case with gas injection with strong capillarity and gravity effects, the streamline-based method tends to lose its advantages for reservoir simulation and may result in loss of accuracy and applicability for history-matching and optimization problems.
In this study, we first present the development of a 3D 3-phase black oil and compositional streamline simulator. Then, we introduce a novel approach to incorporate capillary and gravity effects via orthogonal projection method. The novel aspect of our approach is the ability to incorporate transverse effects into streamline simulation without adversely affecting its computational efficiency. We demonstrate our proposed method for various cases, including CO2 injection scenario. The streamline model is shown to be particularly effective to examine and visualize the interactions between heterogeneity which resulting impact on the vertical and areal sweep efficiencies.
Next, we apply the streamline simulator to history matching and rate optimization problems. In the conventional approach of streamline-based history matching, the objective is to match flow rate history, assuming that reservoir energy was matched already, such as pressure distribution. The proposed approach incorporates pressure information as well as production flow rates, aiming that reservoir energy are also reproduced during production rate matching.
Finally, we develop an NPV-based optimization method using streamline-based rate reallocation algorithm. The NPV is calculated along streamline and used to generate diagnostic plots of the effectiveness of wells. The rate is updated to maximize the field NPV. The proposed approach avoids the use of complex optimization tools. Instead, we emphasize the visual and the intuitive appeal of streamline methods and utilize flow diagnostic plots for optimal rate allocation.
We concluded that our proposed approach of streamline-based simulation, inversion and optimization algorithm improves computational efficiency and accuracy of the solution, which leads to a highly effective reservoir management tool that satisfies industry demands.
Concepts of Heat Exchanger from its applications, heat transfer theory, parts of shell & tube heat exchanger, types of heat exchangers are included here
DSD-INT 2019 Delft FEWS-based flood forecasting system for Czech Hydrometeoro...Deltares
Presentation by Stanislav Vaněček, Pavel Tachecí, DHI CZ, at the Delft-FEWS User Days, during Delft Software Days - Edition 2019. Thursday, 7 November 2019, Delft.
Examples of how Blueback tools can expand and enhance your Petrel workflowMitch Sutherland
A poster designed to give you a flavour of some of the cool Petrel plug-ins available from Blueback Reservoir. For exploration, interpretation, inversion, QI, data analysis, geomodeling & project management.
Need for chemical data and properties
Sources for data tables
Use of standard data tables for property estimation
Vapor Liquid Equilibrium for water system
Use of steam tables
Interpolation
AOG 2017 RINA - Adrian Eassom - LGS technology for Drilling RisersNick Bentley
LGS technology for Drilling Risers - Reducing Costs by increasing Operability whilst improving safety. Courtesy of AMOG, presented at the RINA Conference - AOG 2017 by Adrian Eassom.
Lutes, C. and J. Knoepfle “Rapid, Efficient Delineation From VI Potential of A Large Soil Gas Plume Using HAPSITE and Other Lines of Evidence” Invited oral presentation at EPA Vapor Intrusion Workshop at The 26th Annual International Conference on Soil, Water, Energy and Air, March 2016, San Diego. Presentation available for download from https://iavi.rti.org/WorkshopsAndConferences.cfm.
2017 CalAPA Fall Asphalt Pavement Conference presentation: A summary of research conducted by the University of California Pavement Research Center, Lawrence Berkeley National Laboratory and the University of Southern California on lifecycle impacts of cool pavement strategies in California.
A novel approach for incorporation of capillary and gravity into streamline s...Shusei Tanaka
The effective use of streamline simulators for flow simulation of multi-million cell detailed 3D models relies on the ability to take large simulation time-steps with few pressure solutions. For processes that are convective, the streamline approach works quite well while for flow simulation with compressibility, strong capillarity or strong gravity terms, the maximum time step size may be substantially reduced, limiting the utility of streamline simulation. This is the case when applying the conventional streamline operator-splitting approach, where the nonlinear terms associated with capillarity and gravity limit the time step. Earlier studies have shown the importance of an anti-diffusive correction in which numerical dispersion from the convective solution must be removed before capillary pressure can be accurately modeled. Evaluation of the antidiffusive term involves the solution of a local Riemann problem which, unfortunately, is difficult to determine in full field multi-dimensional problems with heterogeneity, and spatially variable viscosity, fluid velocity, and saturations. The alternative approach is to perform the operating splitting calculation with very small time-steps to minimize the numerical dispersion, but this is not an effective simulation strategy.
Prototype Development of an Integrated Mars Atmosphere and Soil Processing Sy...Michael Interbartolo
NASA multicenter effort to design and build an integrated system for processing representative Martian Atmosphere and Soil. Presented at the Earth & Space 2012 conference in Pasadena CA.
An effective reservoir management by streamline based simulation, history mat...Shusei Tanaka
The use of the streamline-based method for reservoir management is receiving increased interest in recent years because of its computational advantages and intuitive appeal for reservoir simulation, history matching and rate allocation optimization. Streamline-based method uses snapshots of flow path of convective flow. Previous studies proved its applicability for convection dominated process such as waterflooding and tracer transport. However, for a case with gas injection with strong capillarity and gravity effects, the streamline-based method tends to lose its advantages for reservoir simulation and may result in loss of accuracy and applicability for history-matching and optimization problems.
In this study, we first present the development of a 3D 3-phase black oil and compositional streamline simulator. Then, we introduce a novel approach to incorporate capillary and gravity effects via orthogonal projection method. The novel aspect of our approach is the ability to incorporate transverse effects into streamline simulation without adversely affecting its computational efficiency. We demonstrate our proposed method for various cases, including CO2 injection scenario. The streamline model is shown to be particularly effective to examine and visualize the interactions between heterogeneity which resulting impact on the vertical and areal sweep efficiencies.
Next, we apply the streamline simulator to history matching and rate optimization problems. In the conventional approach of streamline-based history matching, the objective is to match flow rate history, assuming that reservoir energy was matched already, such as pressure distribution. The proposed approach incorporates pressure information as well as production flow rates, aiming that reservoir energy are also reproduced during production rate matching.
Finally, we develop an NPV-based optimization method using streamline-based rate reallocation algorithm. The NPV is calculated along streamline and used to generate diagnostic plots of the effectiveness of wells. The rate is updated to maximize the field NPV. The proposed approach avoids the use of complex optimization tools. Instead, we emphasize the visual and the intuitive appeal of streamline methods and utilize flow diagnostic plots for optimal rate allocation.
We concluded that our proposed approach of streamline-based simulation, inversion and optimization algorithm improves computational efficiency and accuracy of the solution, which leads to a highly effective reservoir management tool that satisfies industry demands.
Concepts of Heat Exchanger from its applications, heat transfer theory, parts of shell & tube heat exchanger, types of heat exchangers are included here
DSD-INT 2019 Delft FEWS-based flood forecasting system for Czech Hydrometeoro...Deltares
Presentation by Stanislav Vaněček, Pavel Tachecí, DHI CZ, at the Delft-FEWS User Days, during Delft Software Days - Edition 2019. Thursday, 7 November 2019, Delft.
Examples of how Blueback tools can expand and enhance your Petrel workflowMitch Sutherland
A poster designed to give you a flavour of some of the cool Petrel plug-ins available from Blueback Reservoir. For exploration, interpretation, inversion, QI, data analysis, geomodeling & project management.
Need for chemical data and properties
Sources for data tables
Use of standard data tables for property estimation
Vapor Liquid Equilibrium for water system
Use of steam tables
Interpolation
AOG 2017 RINA - Adrian Eassom - LGS technology for Drilling RisersNick Bentley
LGS technology for Drilling Risers - Reducing Costs by increasing Operability whilst improving safety. Courtesy of AMOG, presented at the RINA Conference - AOG 2017 by Adrian Eassom.
Lutes, C. and J. Knoepfle “Rapid, Efficient Delineation From VI Potential of A Large Soil Gas Plume Using HAPSITE and Other Lines of Evidence” Invited oral presentation at EPA Vapor Intrusion Workshop at The 26th Annual International Conference on Soil, Water, Energy and Air, March 2016, San Diego. Presentation available for download from https://iavi.rti.org/WorkshopsAndConferences.cfm.
http://www.plomerosenmedellin.com/
¡Su Plomero Local desde 1995!
Si usted está buscando una empresa de plomería que tiene una eficiencia excepcional, está orientado al cliente, y es un experto probado en la industria, entonces Plomeros Medellin es la empresa con la que puede contar! Servicios de fontanería las 24 horas.
Factory Infrastructure for PV ManufacturingM+W Group
At this year's intersolar North America show, M+W's Ankush Halbe, Technology Director Renewable Energy, presented the latest PV capacity drivers as well as successfully proven fab design concepts opportunities complying with the environmental and security requirements.
This webinar in the Water business’ Essential Insights series discusses approaches to energy efficiency and resource recovery, including industry initiatives, innovations and case studies.
The demand of power is increasing exponentially results in installation of new stations whereas the sources of water are depreciating acutely. In future there may be a situation in which water sources may not cope up with this requirement.
Also the serious concerns of the regulatory authorities regarding usage of natural resources, definitely the norms will be further be tightened, which will curtail the freedom of usage of water in power plant.
In present scenario land acquisition is one of the toughest hurdles in plant installations which can be averted by locating stations in water scarce regions, by employing air cooled system which eliminates dependencies on water for CW.
Although dry cooling systems are costly technologies on techno-economic considerations, but foreseeing the future it is the need of hour to employ dry cooling system which offers possible solution for power plant installation eliminating the above mentioned challenges.
Future carbon capture R&D efforts need to focus on cost reductions in three main areas: materials, processes and equipment. In this webinar Ron Munson, the Institute’s Principal Manager – Capture, gave an overview of the current directions in carbon capture R&D, including development of higher performance solvents, sorbents and membranes; process improvements and intensification; equipment development; and novel equipment designs.
isiMix Technology - Simulation of Mixing Processes
1. The First and the only tool in the Industry
2. Reliable and accurate results
3. Based on More Than 300 Man Years of R&D and Industry Experience
4. Replacing Pilot Experiments
5. Accelerated Time-to-Market process
6. User Friendly and easily accessible
http://visimix.com/
David Freed (8 Rivers Capital), ELEEP Virtual Discussion on NET PowerELEEP Network
This presentation was given during an ELEEP Virtual Discussion with David Freed on NET Power on July 12, 2016. A video recording of the event is available on the ELEEP Network YouTube Channel - https://www.youtube.com/watch?v=Gl1AoXwEgM8
summary of 16 Lean Six Sigma improvement projects in manufacturing, bio-manufacturing, supply chain
including 2 machine safeguarding . Total savings over $8Mil
1. STOP CHASING THE SOLIDS
REDUCED DESIGN FLOWS FOR THE
NEW WAS THICKENING FACILITY AT
ASHBRIDGES BAY TREATMENT
PLANT
1
S. Liver*, S. Atlin**, P. Coleman*, and R. McKinley**
* Black & Veatch
**City of Toronto
3. PROJECTOVERVIEW
• Driver:
Stop co-thickening in PCs as part of City‘s overall Wet
Weather Flow Strategy and abandon aged DAF
thickening
• Objective:
Construct WAS Thickening Facility with sufficient
capacity so that all future WAS flows can be thickened
through a single process.
PROJECT OVERVIEW
1
4. WAS Pumps and WAS Piping
•Automate WAS pumps
•Replace 12 PLCs with GE RX31 PLCs
Incineration Facility Conversion to TWAS
•Demolish Incineration and Waste Heat Recovery Facility
•Construct new facility on existing pile foundations
•Integrate TWAS facility with adjacent buildings
•Design basis: 26 MLD
•Preselect centrifuges, relocate 2 centrifuges from HTP
•New workshop, administration space, storage areas
2
3
1
1
2
DAF Building
•Convert to Storage Building
•Remove equipment, piping, pumps
•New main floor to cover DAF tanks
•Perform work after TWAS Facility
is commissioned
3
ASHBRIDGES BAY TREATMENT PLANT
6. WHYCONSIDERREDUCEDDESIGNFLOWS
• Quantities measured didn’t match CAS theory
• Contribution of solids from Humber and North
Toronto confounded data
• Historical dataset affected by biosolids “outlets”
• Requirement to Nitrify
• “Phantom RAS”
DRIVERS FOR CONSIDERING REDUCED
DESIGN FLOWS
6
7. WHYCONSIDERREDUCEDDESIGNFLOWS
MASS BALANCE - SIMPLIFIED
7
Influent: 818 MLD
Secondary ClarifierBOD RemovalPrimary Clarifier
Thickening
Co-Thickening
WAS Flow Rate
North Toronto
Humber
Sewer Shed
Splitter Box
“Phantom RAS”
10. ANALYTICALAPPROACH
1. Statistical Data Review of 2012 and “New
Operating Regime” August-December 2013
2. Factors affecting WAS volume
3. Development of Mass Balance
4. Reconciling 2011 Engineering Study Report
proposed design point
STATISTICAL ANALYSIS
10
11. ANALYTICALAPPROACH
• findings
DATA REVIEW - THE BOX AND WHISKER
PLOT
11
Maximum
Half of the values are
within this box
Minimum
Median
Half of the values are above
and below this value
12. ANALYTICALAPPROACH
12
DATA REVIEW - TOTAL WAS FLOW RATE
0
10
20
30
40
50
60
70
2007-2009 Feb2012 toDec 2012 Aug 2013 toDec 2013
WASFlowRate(MLD)
2011 Engineering
Study Report Data
2012 Data
New Operating
Regime Data
13. ANALYTICALAPPROACH
DATA REVIEW – CO-SETTLING FLOW
130
5
10
15
20
25
30
35
40
45
50
2007-2009 Feb2012 toDec 2012 Aug 2013 toDec 2013
Co-SettlingFlow(MLD)
2011 Engineering
Study Report Data
2012 Data
New Operating
Regime Data
14. ANALYTICALAPPROACH
DATA REVIEW – DAF FLOW
14
0
5
10
15
20
25
30
2007-2009 Feb2012 toDec 2012 Aug 2013 toDec 2013
WASFlowtoDAF(MLD)
2011 Engineering
Study Report Data
2012 Data
New Operating
Regime Data
15. ANALYTICALAPPROACH
DATA REVIEW – WAS THICKNESS
150.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
Feb2012 toDec 2012 Aug 2013 toDec 2013
WASConcentration(%w/w)
2012 Data
New Operating
Regime Data
16. ANALYTICALAPPROACH
DATA REVIEW – FLOW VS. CONCENTRATION
16
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
WASFlowRate(MLD)
WAS Concentration (mg/L)
Y axis: Flow in MLD
X Axis: Concentration in mg/L
18. ANALYTICALAPPROACH
• Thickening
‐ Co-Thickening
‐ DAF or Centrifuge
• Solids Load from Humber & NTP
• Impact of Nitrification
• Evaluation at current flows
• Evaluation at plant-rated flow (818 MLD)
MASS BALANCE USED TO EVALUATE:
18
20. ANALYTICALAPPROACH
20
MASS BALANCE: 2012 – 2013 PRODUCTION
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
WASFlowRate(MLD)
WAS Concentration (mg/L)
Yr 2012
25th-75th %ile
Yr 2013 - Aug-Dec
25th-75th %ile
Average 2012 -2013 Sludge Production
~ 88,070 kg/d
52% of WAS to Co-Settling
21. ANALYTICALAPPROACH
21
FACTORS AFFECTING VOLUME – CO-SETTLING
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
WASFlowRate(MLD)
WAS Concentration (mg/L)
Yr 2012
25th-75th %ile
Yr 2013 - Aug-Dec
25th-75th %ile
Impact of No Co-Settling
88,070 kg/d -> 68,156 kg/d
23% less WAS as mass
The New Normal
No need to co-settle when new facility is built
52% Co-Settling
0% Co-Settling
22. ANALYTICALAPPROACH
22
FACTORS AFFECTING WAS VOLUME - SRT
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
WASFlowRate(MLD)
WAS Concentration (mg/L)
Yr 2012
25th-75th %ile
Yr 2013 - Aug-Dec
25th-75th %ile
SRT 6 days -> 3 days = 10% more WAS mass
SRT 6 days -> 9 days = 5% less WAS mass
3 day SRT
9 day SRT
23. ANALYTICALAPPROACH
23
FACTORS AFFECTING WAS VOLUME - HUMBER
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
WASFlowRate(MLD)
WAS Concentration (mg/L)
Yr 2012
25th-75th %ile
Yr 2013 - Aug-Dec
25th-75th %ile
Why can't you use textbook numbers?
28% of the WAS Mass is due to the Humber TP
With HTP
Without HTP
25. FINDINGS
•26 MLD WAS
‐ 818 MLD (ABTP rated capacity)
‐ Humber at rated capacity
‐ No co-thickening
‐ 6 day SRT (SRT impact is less than 10%)
‐ Peaking Factor 30% on mass basis
‐ 5,000 mg/L WAS concentration (minimum at peak
flow)
DESIGN POINT - RECOMMENDATION
25
26. FINDINGS
• Recommend Reducing Design Flow from
37 MLD to 26 MLD
- Peaking Factor 30% on mass basis
- 5,000 mg/L WAS Concentration
• 5 Duty – 2 Standby “40-inch bowl” centrifuges
• Key Reasons:
- Installing centrifuges eliminated co-settling and
“recycle of solids”
- Improved solids control vs. 2007-2009 operation
IMPLICATIONS
26